AP BIO Unit 3 Energy SHORTENED 2024

Front

What happens to electrons in chlorophyll when light strikes photosystems I and II?

Back

Electrons get excited (gain energy) and travel down the electron transport chain embedded in the thylakoid membrane.

Front

Define endergonic and exergonic reactions.

Back

Endergonic reactions are non-spontaneous; exergonic reactions are spontaneous.

Front

What model describes the change in shape between an enzyme and its substrate?

Back

Induced Fit Model.

Front

What characterizes anabolic reactions?

Back

Anabolic reactions are nonspontaneous and build molecules.

Front

Where do plants take in carbon dioxide?

Back

Carbon dioxide enters plants through the stomata.

Front

What is the primary function of photosystems I and II in photosynthesis?

Back

To capture light energy and convert it into chemical energy.

Front

What is the role of ATP in cellular processes?

Back

ATP serves as the primary energy currency of the cell.

Front

What is the difference between catabolic and anabolic reactions?

Back

Catabolic reactions break down molecules; anabolic reactions build molecules.

Front

What is the significance of the electron transport chain in photosynthesis?

Back

It facilitates the transfer of electrons and the production of ATP and NADPH.

Front

What is the role of chlorophyll in photosynthesis?

Back

Chlorophyll absorbs light energy, primarily in the blue and red wavelengths.